▎ 摘　　要

NOVELTY - The utility model relates to the field of electronic circuit plate, especially relates to a mirror surface ultra-hard electronic circuit base plate. it comprises a core layer, the core layer and the lower surface are provided with graphite heat conducting layer and nano graphene coating layer, the conducting layer is disposed between the core layer and the nano-coating; the graphite heat conductive layer and the core layer is a transition layer; the nano-coating and the graphite heat conducting layer is set between the fireproof layer. The purpose of the utility model is to provide a mirror surface ultra-hard electronic circuit plate so as to solve the problem that the existing electronic circuit plate surface hardness is not high, and not good radiating property and easy to damage the drill bit.